correction #6 Doesn't work with Redmine instances not at the root address
add first draft of shortcuts for wikipages, + minor changes in css
add a preview shortcut in wiki page edition
fix a bug in controler choice for issue (get issue list all the time) + no shurtcut when CTRL pressed
Merge remote-tracking branch 'enavarro222/master'

Conflicts:
	assets/javascripts/keyboard_shortcuts.js